PROBLEM TO BE SOLVED: To provide a new periodontitis therapeutic agent having reduced side effects.SOLUTION: There is provided a new periodontitis therapeutic agent including a VEGF (Vascular endothelial growth factor) receptor tyrosine kinase inhibitor as an active ingredient and having reduced side effects.COPYRIGHT: (C)2014,JPO&INPIT【課題】副作用の少ない、新たな歯周炎治療薬の提供。【解決手段】VEGF受容体チロシンキナーゼ阻害剤を有効成分とする、副作用の少ない、新たな歯周炎治療薬を提供する。【選択図】なし